Electromagnetic Reflection Profiles
First Claim
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1. A method, comprising:
- transmitting an impulse from a cellular communications device;
receiving multiple reflections of the impulse at multiple antennas in the cellular communications device;
determining a distortion of the impulse based on the multiple reflections;
obtaining a current location of the cellular communications device; and
associating the distortion to the current location.
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Abstract
Methods, systems, and products determine electromagnetic reflective characteristics of ambient environments. A wireless communications device sends a cellular impulse and receives reflections of the cellular impulse. The cellular impulse and the reflections of the cellular impulse may be compared to determine the electromagnetic reflective characteristics of an ambient environment.
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Citations
20 Claims
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1. A method, comprising:
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transmitting an impulse from a cellular communications device; receiving multiple reflections of the impulse at multiple antennas in the cellular communications device; determining a distortion of the impulse based on the multiple reflections; obtaining a current location of the cellular communications device; and associating the distortion to the current location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system, comprising:
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a processor; and memory to store instructions that, when executed by the processor, cause the processor to perform operations, the operations comprising; storing a database of reflection profiles that associates electromagnetic reflection characteristics to locations; determining a null entry in the database of reflection profiles; retrieving an address of a wireless access point associated with the null entry; determining a communications device that wirelessly communicates with the wireless access point; instructing the communications device to transmit an cellular impulse and to receive a reflection of the cellular impulse; determining a reflection profile from the cellular impulse and the reflection of the cellular impulse; and storing the reflection profile in the database of reflection profiles to replace the null entry. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A computer readable medium storing processor executable instructions for performing a method, the method comprising:
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storing in memory a database of reflection profiles that associates electromagnetic reflection characteristics to locations; determining a null entry in the database of reflection profiles; retrieving an address of a wireless access point associated with the null entry; polling the wireless access point for communications devices that wirelessly communicate with the wireless access point; selecting one of the communications devices; sending an impulse command to the one communications device to transmit a cellular impulse and to receive a reflection of the cellular impulse; determining a reflection profile from the cellular impulse and the reflection of the cellular impulse; and replacing the null entry with the reflection profile in the database of reflection profiles. - View Dependent Claims (18, 19, 20)
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Specification